Compost toilets from Harvest Moon

Swedish bathroom brand Harvest Moon has launched its first product, a compost toilet that turns waste into soil and fertiliser. Unveiled at Stockhlom Furniture Fair, Luna is a composting toilet that provides an eco-friendly solution to the disposal of human waste, at no cost to style, comfort or hygiene. Tapping into a growing trend for water-free toilets, Luna’s design is a response to concerns about carbon footprint and energy use impact ing product design.

GALLERY  

Able to be installed in any location, the system is smell-free and allows for the disposal of waste without any human contact required. The toilet utilises a water-free system, which saves the household an estimated 50,000 litres per year.

On top of significant energy and water savings, the benefits of compost toilets range from the flexibility of installation to the recovery of valuable nutrients through composting. The Luna system works by separating urine and faeces into different disposal compartments. The feature that sets it apart from its competitors is an integrated pump, so there is no need to manually empty containers of urine or install an underground collection tank.

“When you close the lid, the urine is pumped to a destination that suits your setup,” explained Hampus Nordensson, industrial designer at Harvest Moon. The nutrient-rich urine could be diverted to an outdoor fertiliser storage tank or, if local regulations allow, straight into a ground infiltration system. If neither is possible, it could be pumped straight to the sewer.

The faeces, meanwhile, are collected in a bin containing a compostable plastic bag, with everything made black to ‘hide the waste’. The bin’s lid is designed to allow an easy, contactless transfer to a latrine compost.

Luna incorporates various electronic functions, including a sliding cover that can be used to keep the faeces covered, a rotating bin that helps the solids decompose and a fan to ensure plenty of air movement. These can be powered by solar electricity, allowing the toilet to be used off-grid.

Images from Nathalie Ulinder Cut, via Dezeen

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